Home / 76,766.09-115,149.13-29,986.16

Finding the Fourth Proportional to 76,766.09, 115,149.13 and 29,986.16

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Solution

The fourth proportional to 76,766.09, 115,149.13 and 29,986.16 is: 44,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,766.09 : 115,149.13 = 29,986.16 : x
  2. Step 2: Convert to fraction form
    76,766.09/115,149.13 = 29,986.16/x
  3. Step 3: Cross multiply
    76,766.09x = 115,149.13 × 29,986.16
  4. Step 4: Simplify right side
    76,766.09x = 3,452,879,660.30
  5. Step 5: Solve for x
    x = 3,452,879,660.30/76,766.09
  6. Step 6: Final answer
    x = 44,979.23

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.